RE: How do they display Appearance info on iOS in NRF Connect?

Dinesh Harjani — Wed, 19 Aug 2020 11:46:48 GMT

This "Appearance" value is custom to nRF Connect for iOS. We use a combination of Device Name (Peripheral or Advertised), its Advertised Services and Manufacturer Data to give it an "Appearance" which then feeds into the icon you see next to it.

nRF Connect for iOS is not open-sourced by Nordic, it's the only one of our iOS projects we don't share publicly, so I'm afraid I cannot point you to the code. But that's basically it, just "common-sense logic" we're building up as we go. For example, we have an Appearance for related to the ContactTracing Service, however, it's unlikely you'll see it because CoreBluetooth filters it out :)